Sliding-door lock and brace.



J. K. WILLIAMS. SLIDING DOOR LOCK AND BRAGB.

APPLICATION FILED JUNE 30, 1913.

Patented Nov. 10, 1914.

Attorneys UNITED STATES PATENT OFFICE. V

JOHN KENNEDY WILLIAMS, OF JACKSONVILLE, FLORIDA.

SLIDING-DOOR LOCK AND BRACE.

To all whom it may concern:

Be it known that 1, JOHN KENNEDY VIL- LIAMS, a citizen of the United States, re-

siding at Jacksonville, in the county of Du valand State of Florida, have invented a new and useful Sliding-Door Lock and Brace, of which the following is a specification.

This invention relates to improvements in a sliding door-lock and brace and is particularly adapted for locking and bracing the sliding doors such as are used on freight cars. i

The primary object of the invention is the provision of a lock and brace which will securely hold the door when in its closed position and which can be quickly released for opening the door.

A further object of the invention is the provision of a device of this character which will prevent the door from binding when in operation and which will do away with the ordinary guide track secured to the car beneath the lower edge of the door.

71th these and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings: Figure 1 is a side elevation partly broken away. Fig. 2 is a sectional view on the line a-a of Fig. 1. Fig. 3 is an edge view partly in section showing the locking block in lowered position, and Fig. 4 is an edge view partly in section showing the locking block in raised position.

In the drawings, the numeral 1 indicates the side of a freight car of usual construction and the track 2 is secured to the side of the car by the usual brackets 3. A sliding door 4 of usual construction is hung from the track 2 by means of the hangers 5 which have the rollers or wheels 6 which operate on the upper edge of the track. Brackets 7 are secured to the side of the car in the position shown just below the lower edge of the door and rollers 8 are secured to the side of the car by means of the bolts 9 and the lower end of the door 4 rests and operates upon these rollers. A block 10 is slidably Specification of Letters Patent. Pate t d NO 10 1914 I Application filed June 30, 1913.

Serial No. 776,732.

mounted in each of the brackets and engage the face of the door when in their lowered position as clearly shown in' Fig. 2 of the A flange 11 is formed on, each tion as shown clearly in Figs. 2 and 3 of the drawings and these flanges will engage the face of the door when in a raised position as clearly shown n Fig. 4. A recess 1s formed"- in the outer face of each of the blocks as shown and provides the shoulders 12 and 13" which limit the upward and downward.

movement of the block and as clearly shown the recess is of such a shape as to provide the beveled face 14 and the straight surface 15.

Having described the detail construction of my device it is thought that the operation will be clearly understood. When the door is in its closed position as shown in Figs. 1, 2, and 8 of the drawings the blocks engage the face of the door and the flanges 11 of the end blocks engage the edges of the door. The straight faces 15 of the blocks engage the brackets as clearly shown in Fig. 3 of the drawing and in this manner the block is held in its lower position and the door is securely locked against sliding movement and is also prevented from swinging outward at its lower edge. When it is desired to open the door the block is raised into the position shown in Fig. 4 of the drawings and the bracket 7 is received below the beveled face 14 of the block and the flange 11 will engage the face of the door. This will guide the lower edge of the door while sliding the same and when the door is again closed the block will drop into its original position by means of the beveled face 14. The central block will merely act as a guide to the door and as it has no flange 11 thereon does not aid in holding the door in its closed position. Thisblock, however, as stated will act as a guide when the door is being opened and if the same should bind to excess on the door it could be raised the same as the end block.

From the above it will be noted that I have provided a lock which will lock the door against sliding movement as well as prevent the lower edge of the door from swinging outward. Then, when the block is raised there will be no friction to prevent the easy operation of the door.

Having fully described the invention what I claim as new and desire to secure by Letters Patent is 1. The combination with a car and a sliding door, of a bracket secured to the car, a block slidable in said bracket and engaging the face of. the door, anda flange formed on the block and engaging the edge of the door. V 2. The combination with a car and a sliding" door, of a bracket secured to the car, a block slidably mounted in the bracket and 1 adapted to engage the face of the door when in lowered position, a recess formed in the fro nt face of the block whereby it will swing from the door when in raised position, the bracket passing within the recess anda fiange f formed on the block for enhe combination with a car and a sliding; door, of a bracket secured to the car, and a: blockslidably mounted in the bracket and adapted to engage the door, said block having arecess whereby it will swing from the door when in a raised position, and shoulders for limiting the movement of the block.

4. The combination with a car and a sliding. door, of a bracket secured to the car, and a block slidably mounted in the bracket and adapted to engage the face of the door, said block having two recesses in the face thereof, the lower recess being of greater d.epththan the upper, the bracket resting in the upper recess when the block is in its lowered position, and in the lower recess when in raised position whereby the block can swing from the door.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

JOHN KENNEDY "WILLIAMS.

Witnesses:

JOSEPH B. DAVIS, H. M. Coons.

Copies oftiiis patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

